Earbud



FIG. 1 is an overhead perspective view showing the new design for an earbud.

FIG. 2 is a side view thereof, both sides being mirror images of each other;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a rear view thereof.

The broken lines form no part of the claimed design. 

The ornamental design for an earbud, as shown and described. 